How is the flight distance measured?

Flight distances are measured as the great-circle (straight-line) distance between airports. Actual flight paths may be slightly longer due to air traffic routing and weather avoidance.

How long does the flight from London to San Francisco take?

Flight time depends on the exact route and aircraft, but at roughly 8,615 km the typical non-stop flight takes 1–10 hours. Check the flight duration page for the exact average.

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Flight Distance: London to San Francisco

8,615

Kilometres (km)

5,353

Miles (mi)

4,652

Nautical miles

About this flight distance

The great circle distance from London to San Francisco is approximately 8,615 km. The typical flight time is 10h 38m.

This is the shortest possible distance between the two cities as the crow flies. Real flight paths are often slightly longer due to air traffic control routing, weather, and airspace restrictions.

Related route pages

→Direct flights London to San Francisco →Flight duration London to San Francisco →Cheapest day to fly London to San Francisco →Flights London to San Francisco

Nearby airports

Near London

London City Airport (LCY)36 km
London Gatwick Airport (LGW)41 km
London Luton Airport (LTN)45 km

Near San Francisco

San Carlos Airport (SQL)16 km
Metropolitan Oakland International Airport (OAK)18 km
Norman Y. Mineta San Jose International Airport (SJC)49 km

Frequently Asked Questions

The great-circle distance from London to San Francisco is approximately 8,615 km (5,353 miles).